302 
PALEONTOLOGY OF NEW-YORK. 
Dalmania uasutus. 
Plate LXXY. Fig. 2; and Plate LXXYI. Fig. 1 - 9. 
Asaphus nasutus : Conrad, Annual Report on the Palaeontology of New-York, 1841, p.48. 
Mr. Conrad has given the following description of the species cited 
above : 
“Buckler rostrated : ribs with a wide shallow sulcus; a few of the ribs 
“ each with a large tubercle; two rows of tubercles on the middle lobe, 
“ obsolete on some of the ribs. Tail consisting of a long, round, finely 
“ tuberculated spine.” 
To which may be added : 
Head crescentiform, with the posterior angles extended into long mucro- 
nate points, and the frontal limb projected into a broad and somewhat 
flattened spiniform process which is bifurcated at the extremity. 
Glabella moderately convex; length from the occipital furrow to the 
anterior margin about one-fourth greater than the width of the frontal 
lobe, which is transversely oval, being about three-fourths as long as 
wide; transverse furrows strongly marked, the anterior and central 
ones not strongly marked across the middle : anterior lobes broad and 
prominent, widening towards the eyes, the middle ones of nearly the 
same width throughout; the central space between the inner extremi¬ 
ties of the anterior and middle lobes nearly flat : posterior lobes a 
little pointed forwards in the middle. Occipital furrow shallow, its 
continuation in the posterior furrow of the cheeks being wider and 
deeper. 
Eyes large and prominent, the outer rim much elevated above the central 
portion : a strongly marked furrow around the base, which separates 
it from the adjacent surface of the cheek. Entire number of ranges of 
lenses, laterally, about forty, which, in the highest part of the eye, 
have an elevation of ten or twelve lenses; the entire number between 
350 and 400 (no specimen being sufficiently perfect to count them all). 
